Automated analysis device, and lid opening/closing mechanism

An automated analysis device comprising:

• a container transport device on which a plurality of reagent containers for accommodation of reagents used for analysis of a sample can be mounted;
• and
• a lid opening/closing mechanism that can simultaneously open or close a plurality of specific reagent containers located at a dispensing/stirring position among the plurality of reagent containers,
• wherein the lid opening/closing mechanism includes
• a unit base that is fixed to the container transport device,
• a hook base part that is rotatably linked to the unit base,
• a lid opening/closing drive device that moves the hook base part in parallel in an opening/closing direction of lids of the plurality of specific reagent containers with respect to the unit base,
• a plurality of hooks that are rotatably linked to the hook base part, and respectively engage with the lids of the plurality of specific reagent containers, and
• a plurality of hook drive devices which can individually rotationally move the plurality of hooks with respect to the hook base part, and
• wherein each of the plurality of hooks includes
• a claw portion that, when oriented to engage with a lid, causes force to act on the lid in the opening direction,
• a basal part that, when oriented to engage with the lid, causes force to act on the lid in the closing direction, and
• a closing protrusion that, when oriented not to engage with the lid, causes force to act on the lid in the closing direction.